(64-005638-00R)

Manuals and other documents

Install Guide (PDF) Command Reference (PDF) Data Sheet: US, EMEA, FR, ES, IT, DE, (PDF) Declaration of Conformity, DE, FR, IT, ES (PDF)

OS compatibility

Win11 | 2019 | 2016 | Win10 | 2012 R2 | 2012 | Win8 | 2011 | Win7 | 2008 | Vista | Vista 64 | XP 64 | 2003 | XP | 2K | Me | 98 SE | 98 FE | 95 | Linux | Mac OSX

IMPORTANT NOTE: Microsoft's January 13, 2026 Windows update closes several security gaps, which includes removing legacy modem drivers! THIS MODEM WILL NOT FUNCTION IN ANY VERSION OF WINDOWS THAT HAS RECEIVED THAT UPDATE OR ANY LATER WINDOWS UPDATES.

Drivers

WHQL Certified 32 and 64 bit Drivers compatible with Windows XP, Vista, 2003, 2008, Win 7, Win 8, 2011, 2012, Win 10, 2012 R2, 2016, 2019

  1. Download the zip file to a temporary location on your computer's hard drive and extract the files.
  2. Run setup.exe and follow the on-screen instructions.
  3. Insert your modem to complete the installation.

USR5638 Logo Drivers.zip (430 KB 03-24-10)

Warranty

North America & EMEA: 2 years
USR5638 product photo
RoHS compliant

Documents and FAQs

Additional support

If the support information in this section does not help you solve your issue, you can contact a USR helpdesk technician directly.